[GHC] #1162: :quit doesn't always quit GHCi when stopped at a breakpoint

[GHC]

#1162: :quit doesn't always quit GHCi when stopped at a breakpoint
----------------------------+-----------------------------------------------
    Reporter:  mnislaih     |       Owner:                        
        Type:  bug          |      Status:  new                   
    Priority:  lowest       |   Milestone:  6.8                   
   Component:  GHCi         |     Version:  6.7                   
    Severity:  trivial      |    Keywords:  ghci debugger         
  Difficulty:  Easy (1 hr)  |    Testcase:  ghci.debugger/break010
Architecture:  Unknown      |          Os:  Unknown               
----------------------------+-----------------------------------------------
The mechanism for GHCi inferior sessions used by the debugger is a bit
 weak, in that it uses a exception StopParentSession to signal the desire
 to exit from GHCi to the top session. If the enclosing context at which
 the breakpoint is stopped is wrapped by an exception handler, that handler
 could capture the exception and as a result GHCi does not exit but return
 to the top level session instead.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1162>
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